Jayden has some dimes and some quarters. He has at most 25 coins worth at least $4.60 combined. If Jayden has 7 dimes, determine all possible values for the number of quarters that he could have.​

Answers

Answer 1

Answer:

16,17,18

Step-by-step explanation:

\underline{\text{Define Variables:}}

Define Variables:

May choose any letters.

\text{Let }d=

Let d=

\,\,\text{the number of dimes}

the number of dimes

\text{Let }q=

Let q=

\,\,\text{the number of quarters}

the number of quarters

\text{\textquotedblleft at most 25 coins"}\rightarrow \text{25 or fewer coins}

“at most 25 coins"→25 or fewer coins

Use a \le≤ symbol

Therefore the total number of coins, d+qd+q, must be less than or equal to 25:25:

d+q\le 25

d+q≤25

\text{\textquotedblleft at least \$4.60"}\rightarrow \text{\$4.60 or more}

“at least $4.60"→$4.60 or more

Use a \ge≥ symbol

One dime is worth $0.10, so dd dimes are worth 0.10d.0.10d. One quarter is worth $0.25, so qq quarters are worth 0.25q.0.25q. The total 0.10d+0.25q0.10d+0.25q must be greater than or equal to \$4.60:$4.60:

0.10d+0.25q\ge 4.60

0.10d+0.25q≥4.60

\text{Plug in }\color{green}{7}\text{ for }d\text{ and solve each inequality:}

Plug in 7 for d and solve each inequality:

Jayden has 7 dimes

\begin{aligned}d+q\le 25\hspace{10px}\text{and}\hspace{10px}&0.10d+0.25q\ge 4.60 \\ \color{green}{7}+q\le 25\hspace{10px}\text{and}\hspace{10px}&0.10\left(\color{green}{7}\right)+0.25q\ge 4.60 \\ q\le 18\hspace{10px}\text{and}\hspace{10px}&0.70+0.25q\ge 4.60 \\ \hspace{10px}&0.25q\ge 3.90 \\ \hspace{10px}&q\ge 15.60 \\ \end{aligned}

d+q≤25and

7+q≤25and

q≤18and

 

0.10d+0.25q≥4.60

0.10(7)+0.25q≥4.60

0.70+0.25q≥4.60

0.25q≥3.90

q≥15.60

\text{The values of }q\text{ that make BOTH inequalities true are:}

The values of q that make BOTH inequalities true are:

\{16,\ 17,\ 18\}

{16, 17, 18}

Answer 2
Final answer:

Jayden must have at least 16 quarters in order to have at most 25 coins worth at least $4.60 combined.

Explanation:

Let's assume Jayden has x quarters. Since Jayden has 7 dimes, he has a total of 7 + x coins. The value of a dime is $0.10, so the value of the dimes is 7 × $0.10 = $0.70.

The value of a quarter is $0.25, so the value of the quarters is x × $0.25 = $0.25x. The total value of all the coins is at least $4.60, so we have the equation:

$0.70 + $0.25x ≥ $4.60.

Simplifying the equation, we get:

$0.25x ≥ $4.60 - $0.70

$0.25x ≥ $3.90

x ≥ $3.90 / $0.25

x ≥ 15.6

Since we can't have a fraction of a coin, Jayden must have at least 16 quarters in order to have at most 25 coins worth at least $4.60 combined.

Learn more about Finding the number of quarters based on the given information here:

https://brainly.com/question/31763157

#SPJ3


Related Questions

A wildlife biologist determines that there are approximately 200 deer in a region of a national park. The population grows at a rate of 7% per year. What is an exponential function that models the expected population?

Answers

Answer:

The exponential function is Y = 200 [1.07]ˣ

Step-by-step explanation:

Let Y represent the expected population

Let P represent the current population

Let r represent the population growth rate

let x represent the number of years or nth year.

The compound interest expression can used to derive the exponential function can be represented as follows

Y = P [1 + (r ÷ 100)]ˣ

Y = 200 [ 1 + (7 ÷ 100)]ˣ

Y = 200 [ 1 + (0.07)]ˣ

Y = 200 [1.07]ˣ

Final answer:

To model the population growth of deer in a national park, an exponential function P(t) = 200 * (1 + 0.07)^t is used. This reflects a starting number of 200 deer, with growth at a rate of 7% per year, allowing for future population predictions.

Explanation:

A wildlife biologist determines that there are approximately 200 deer in a region of a national park. The population grows at a rate of 7% per year. To model the expected population using an exponential function, we use the general formula for exponential growth P(t) = P0 * (1 + r)^t, where:

P(t) represents the population at time t years,P0 is the initial population size,r is the annual growth rate as a decimal,t is the number of years.

Given that the initial population (P0) is 200 deer and the annual growth rate (r) is 7% or 0.07, the exponential growth model to predict future population sizes can be written as P(t) = 200 * (1 + 0.07)^t.

This function can be used to calculate the expected number of deer in this region of the national park for any number of years into the future, allowing biologists and park management to make informed decisions regarding wildlife conservation and management.

Ajar contains 8 blue marbles, 6 red marbles, and 10 green marbles. You pick one marble
from the jar. Find the theoretical probability, P(blue or green). Write your answers as a
decimal rounded to nearest hundredth place.

Answers

Answer:

.75 is your answer

Step-by-step explanation:

The points obtained by students of a class in a test are normally distributed with a mean of 60 points and a standard deviation of 5 points.


About what percent of students have scored more than 75 points?

0.15

2.5

15.5

34

Answers

Answer:

Option A) is correct.

Step-by-step explanation:

We need to use normalcdf command to find the probability that the variable would fall into a certain interval that we would supply.

As

The points obtained by students of a class in a test are normally distributed with a mean of 60 points

and

a standard deviation of 5 points

And we have to determine the percent of students have scored more than 75 points.

So,

Mean = μ = 60

Standard Deviation = σ = 5

As we have to determine the percent of students have scored more than 75 points.

Hence,

normalcdf(75,100,60,5) = .0013

Converting on percentage → .0013 × 100 = 0.1

Therefore, option A) is correct as 0.1 percent of students have scored more than 75 points.

Keywords: distribution, mean, median

Learn more about distribution, mean and median from brainly.com/question/12820590

#learnwithBrainly

Ms. Vargas owns 4/5 of an acre of land in Tupelo Township. She wants to sell 2/3 or her land to her neighbor. What fraction of an acre does Ms. Vargas want to sell

Answers

4/5 - 2/3 = 12/15 - 10/15 = 2/15

Final answer:

Ms. Vargas wants to sell 2/3 of her 4/5 acre of land. By multiplying the fractions, we find that she intends to sell 8/15 of an acre to her neighbor.

Explanation:

Ms. Vargas owns 4/5 of an acre of land and wants to sell 2/3 of her land. To find out what fraction of an acre Ms. Vargas wants to sell, we need to multiply these two fractions together.

Here is the step-by-step calculation:

Multiply the numerators (top numbers) of the fractions: 4 × 2 = 8.

Multiply the denominators (bottom numbers) of the fractions: 5 × 3 = 15.

Combine the products to get the fraction of the land she wants to sell: 8/15 of an acre.

Therefore, Ms. Vargas wants to sell 8/15 of an acre of her land to her neighbor.

They are 13 sales people at a car dealership last year they each sold the same number of cars together they sold 1157 how many cars did each salesperson sell

Answers

Answer: each salesperson sold 89 cars last year.

Step-by-step explanation:

The total number of sales people at the dealership shop is 13.

Last year they each sold the same number of cars. The total number of cars that they sold together last year was 1157. Therefore, the number of cars that each salesperson sold would be

Total number of cars sold/ number of salespersons

It becomes

1157/13 = 89

For the following linear equations, determine which inverse operation allows you to determine the solution of the equation. In your final answer, also include the solution to each equation.


1) n/5 = -0.3
2) -2n = 4 1/3

Answers

Answer:

see explanation

Step-by-step explanation:

(1)

Given

[tex]\frac{n}{5}[/tex] = - 0.3

Since n is divided by 5 then use the inverse operation, multiplication.

Multiply both sides by 5 to clear the fraction

n = 5 × - 0.3 = - 1.5

(2)

Given

- 2n = 4 [tex]\frac{1}{3}[/tex] ← change to an improper fraction

- 2n = [tex]\frac{13}{3}[/tex]

Since n is multiplied by - 2 then use the inverse operation, division.

Divide both sides by - 2

n = [tex]\frac{13}{-6}[/tex] = - [tex]\frac{13}{6}[/tex]

Volume is the: Select the correct answer below: 1. basic unit for measuring distance 2. amount of matter in an object force per unit 3. area space occupied by any sample of matter

Answers

Answer:

Option 3) area space occupied by any sample of matter              

Step-by-step explanation:

We define volume of an object as:

It is defined as the space occupies by an object.It is measured in cubic units.It is the quantity of three-dimensional space enclosed by a closed surface.It is different from mass occupied by the object.Thus, it is defined as:

Option 3) area space occupied by any sample of matter

It is not a unit for measuring distance.

It cannot be defined as amount of matter in an object force per unit

Which of the following combinations of fishing lures and duck decoys is unobtainable to Big Lake Bob in one week's worth of carving? 80 fishing lures and 5 duck decoys 40 fishing lures and 20 duck decoys 50 fishing lures and 10 duck decoys 20 fishing lures and 24 duck decoys c. Which of the following combinations of fishing lures and duck decoys is an efficient combination? 20 fishing lures and 24 duck decoys 50 fishing lures and 0 duck decoys 10 fishing lures and 40 duck decoys 16 fishing lures and 30 duck decoys?

Answers

Answer:

b) 40 fishing lures and 20 duck decoys

c) 20 fishing lures and 24 duck decoys

Question:

Attached is the graph to be used to answer the questions.

Step-by-step explanation:

b) Any point above the straight line graph PPF is unobtainable, while points below or on the line graph are obtainable.

Finding each of the points on the graph and determine whether it is above, on or below the line graph.

- Only one point is above the graph (40 fishing lures and 20 duck decoys )

Therefore, 40 fishing lures and 20 duck decoys  is unobtainable.

c) for an efficient combination the points must be on the line of the graph (PPF).

The only point that falls on the line of the graph is (20 fishing lures and 24 duck decoys)

Therefore, 20 fishing lures and 24 duck decoys is an efficient combination.

The math club makes 35 bars of laundry soap a week and sells these at $20 each before the soap could be sold , the pupils found that 6 bars were destroyed by mice. How much will the total sale at the end of a four week month?

Answers

Answer:

Step-by-step explanation:

The math club makes 35 bars of laundry soap a week and sells these at $20 each. This means that the total number of bars of laundry soap made in a 4 week month would be

4 × 35 = 140 bars

If the pupils found that 6 bars were destroyed by mice, the total number of bars of soap left would be

140 - 6 = 134 bars

Therefore, the total sale at the end of a four week month would be

134 × 20 = $2680

Final answer:

The total sales at the end of a 4-week month, given that 6 out of 35 soap bars were destroyed by mice every week and the price of each soap bar is $20, would be $2320.

Explanation:

The math club initially makes 35 bars of soap every week. However, due to the unforeseen mouse problem, 6 bars are rendered unsalable each week. Therefore, the club is effectively selling only 29 bars per week. Because the selling price of each bar is $20, each week's sales amount to 29 bars x $20/bar = $580.

Over 4 weeks, the total sales would then be $580/week x 4 weeks = $2320. So, the total amount of sales at the end of a 4-week month, after accounting for the mice damage, would be $2320.

Learn more about sales calculation here:

https://brainly.com/question/31474263

#SPJ3

A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular to each other, at 23 m/s . The third piece has twice the mass as the other two.

Answers

Answer:

Step-by-step explanation:

Solve the equation, if possible. (If all real numbers are solutions, enter REALS. If there is no solution, enter NO SOLUTION.) x2 = (x + 3)(x − 3) + 9

Answers

Answer:

REALS. all real numbers are solution for the equation

Step-by-step explanation:

for the equation

x² = (x + 3)*(x − 3) + 9

distributing the terms in the parenthesis

x² = (x + 3)*(x − 3) + 9  = [x² - 3*x + 3*x - 3*3 ] + 9

x² = x² - 9 + 9

0 = 0

since this statement will be true regardless of the value of x , then the equation has solution for all real numbers .

A frequency distribution lists the ______ of occurrences of each category of​ data, while a relative frequency distribution lists the __________ of occurrences of each category of data.

Answers

Answer:

number  ,proportion

Step-by-step explanation:

Data is a collection of facts, such as numbers, words, measurements, observations. Data is organised in graphs or charts for analysis and conclusions.

A frequency distribution lists the number of occurrences of each category of data.

A relative frequency distribution lists  the proportion of occurrences of each category of data.

A frequency distribution lists the number of occurrences, and a relative frequency distribution lists the proportion of occurrences of each category of data. Frequency tables compile occurrences, while relative frequencies are calculated as a ratio of the frequency to the total number of observations. Histograms and bar graphs visually represent these distributions.

A frequency distribution lists the number of occurrences of each category of​ data, while a relative frequency distribution lists the proportion of occurrences of each category of data. When we compile a frequency table, the data are organized so that we know how many times a particular value or category occurs. For example, a frequency distribution can inform us that 15 students spend five hours or more studying for an exam.

Conversely, a relative frequency distribution provides us with a ratio or fraction that represents how often a value appears relative to the entire set of data. To calculate relative frequency, one would divide each frequency by the total number of observations. If 20 students were surveyed, and 5 studied for more than five hours, the relative frequency would be 5/20 or 0.25 (which can also be expressed as 25%).

Graphical representations such as histograms and bar graphs are valuable for visualizing both frequency and relative frequency. A histogram is suitable for displaying the distribution of interval or ratio variables, particularly with a large number of cases. Bar graphs are more commonly used for nominal or ordinal data, which usually involves fewer categories.

Given this information, in order to use his 4 hours of study time to get the best exam score possible, how many hours should he have spent working on problems and how many should he have spent reading?

Answers

Answer:

2 hours working on problems, 2 hours reading

Step-by-step explanation:

The question is incomplete. Here is the complete question:

Ben is a hard-working college senior. One Thursday, he decides to work nonstop until he has answered 150 practice problems for his math course. He starts work at 8:00 AM and uses a table to keep track of his progress throughout the day. He notices that as he gets tired, it takes him longer to solve each problem.

Time          |   Total Problems Answered

8:00 AM   |   0

9:00 AM   |   60

10:00 AM |   105

11:00 AM  |   135

Noon   |   150

The marginal, or additional, gain from Ben's first hour of work, from 8:00 AM to 9:00 AM, is 60 problems.

The marginal gain from Ben's third hour of work, from 10:00 AM to 11:00 AM, is 30 problems.

Later, the teaching assistant in Ben's math course gives him some advice. Based on past experience, the teaching assistant says, "working on 40 problems raises a student's exam score by about the same amount as reading the textbook for 1 hour". For simplicity, assume students always cover the same number of pages during each hour they spend reading.

Given this information, in order to use his 4 hours of study time to get the best exam score possible, how many hours should he have spent working on problems, and how many should he have spent reading?

The marginal or additional gain in the above question is calculated by obtaining the difference in problems solved between two selected time frames . For example, the marginal or additional gain from Ben's 11 AM to Noon work is :

Additional gain from 11 AM to Noon = 150 - 135 = 15 problems

Ben should therefore make his decision at the margin. Each hour, he should select the option that will improve his exam grade by the largest amount. If he can do more than 40 problems in an hour, working on problems will help raise his grade more for that hour than reading would.The marginal gain from the first hour is 60 problems. The marginal gain from the second hour is 45 problems. He will stop there, because he will get only 30 problems done if he spends the third hour working on problems. Therefore, he should stop working on problems and spend his remaining 2 hours reading instead.

Paul has $30000 to invest. His intent is to earn 10% interest on his investment. He can invest part of his money at 6% interest and part at 13% interest. How much does Paul need to invest in each option to make get a total 10% return on his $30000?

Investing for 6% return: $
.
Investing for 13% return: $

Thanks a ton! :)

Answers

Answer:

The amount invested at 6% is $12,857.14

The amount invested at 13% is $17,142.86

Step-by-step explanation:

Let

x ----> the amount invested at 6%

30,000-x -----> the amount invested at 13%

we know that

The interest earned by the amount invested at 6% plus the interest earned by the amount at 13% must be equal to the interest earned by the total amount of $30,000 at 10%

Remember that

[tex]6\%=6\100=0.06[/tex]

[tex]13\%=13\100=0.13[/tex]

[tex]10\%=10\100=0.10[/tex]

so

The linear equation that represent this situation is

[tex]0.06x+(30,000-x)0.13=0.10(30,000)[/tex]

solve for x

[tex]0.06x+3,900-0.13x=3,000\\0.13x-0.06x=3,900-3,000\\0.07x=900\\x=\$12,857.14$[/tex]

[tex]x-\$30,000=\$17,142.86[/tex]

therefore

The amount invested at 6% is $12,857.14

The amount invested at 13% is $17,142.86

How many ways can 2 Geometry books, 8 Algebra books and 2 Pre-Calculus books be arranged on a shelf if all the books of each respective subject are identical?

Answers

Answer: 2,970

Step-by-step explanation:

The number of ways to arrange n things such that a things are identical , b things are identical , and so on is  [tex]\dfrac{n!}{a!\cdot b!\cdot ....}[/tex] .

As per given , we have

Number of Geometry books = 2

Number of Algebra books = 8

Number of Pre-Calculus books =2

Total books = 2+8+2=12

Then, the number of ways to arrange them : [tex]\dfrac{12!}{2!\cdot 8!\cdot 2!}[/tex]

[tex]=\dfrac{12\times11\times10\times9\times8!}{2\times8!\times2}=2970[/tex]

Hence, the total number of ways to arrange 2 Geometry books, 8 Algebra books and 2 Pre-Calculus books is 2,970.

Final answer:

To find the number of arrangements of different books on a shelf, we use the concept of permutations of multiset in combinatorics. For 12 books (2 Geometry, 8 Algebra, 2 Pre-Calculus), the number of arrangements is the factorial of the total (12!) divided by the product of factorials for each group of identical items (2!, 8!, 2!).

Explanation:

The question is asking how many ways you can arrange identical books of different subjects on a shelf. Here, we need to use the concept of permutations of multiset, often used in combinatorics. For 12 books in which 2 are Geometry, 8 are Algebra and 2 are pre-Calculus, the number of permutations is given by 12! / (2! * 8! * 2!). This formula is derived from the general principle of permutations of multisets where you divide the factorial of the total number of items by the product of factorials for each group of identical items.

Learn more about Permutations of Multiset here:

https://brainly.com/question/34296530

#SPJ3

A deck of cards contains 52 cards, of which 4 are aces. You are offered the following. Draw one card at random from the deck. You win $11 if the card drawn is an ace, otherwise you lose $1. If you make this wager very many times, what will the mean outcome be_____________.

Answers

Answer:

[tex] E(X) = 11 *\frac{4}{52} - 1*\frac{48}{52} = -\frac{1}{13}[/tex]

So we expect to lose approximately [tex] 1/13[/tex] for this game.

Step-by-step explanation:

For this case we can find the probability of win like this:

[tex] p_w = \frac{4}{52}[/tex]

Since we have 4 aces each time in a total of 52.

And the probability of loss is given by:

[tex] p_l = \frac{48}{52}[/tex]

In statistics and probability analysis, the expected value "is calculated by multiplying each of the possible outcomes by the likelihood each outcome will occur and then summing all of those values".

And we can find the expected value with this formula:

[tex] E(X) = \sum_{i=1}^n X_i P(X_i) [/tex]

Where X on this case represent the random variable "Amount of money win or loss in the game", for this case we can replace and we got:

[tex] E(X) = 11 *\frac{4}{52} - 1*\frac{48}{52} = -\frac{1}{13}[/tex]

So we expect to lose approximately [tex] 1/13[/tex] for this game.

Final answer:

The mean outcome of this wager is -$0.62, indicating an expected average loss of $0.62 per game.

Explanation:

To determine the mean outcome of this wager, we need to calculate the expected value. The probability of drawing an ace from the deck is 4/52, since there are 4 aces out of 52 cards. The payoff for drawing an ace is $11, while the payoff for not drawing an ace is -$1. The expected value is calculated by multiplying the probability of each outcome by its corresponding payoff and summing them up:

Expected value = (Probability of outcome 1 x Payoff for outcome 1) + (Probability of outcome 2 x Payoff for outcome 2)

Expected value = (4/52 x $11) + (48/52 x -$1)

Expected value = -$0.62

Therefore, if you play this game repeatedly, you would expect to lose $0.62 per game, on average. The expected value indicates an expected average loss, so it is not advisable to play this game to win money.

Learn more about Expected value here:

https://brainly.com/question/35639289

#SPJ3

Find the exact value of cot theta if csc theta = -4/3 and the terminal side of theta lies in Quadrant III.

Answers

Answer:

The exact value of cotФ  is  [tex]\frac{\sqrt{7}}{3}[/tex]  

Step-by-step explanation:

Given as:

The value of cosec Ф = [tex]\frac{-4}{3}[/tex]

Let the value of  cotФ = x

Now, According to question

∵  sinФ = [tex]\frac{1}{cosec\Theta }[/tex]                       .....1

Put the value of cosec Ф = [tex]\frac{-4}{3}[/tex] in eq 1

i.e  sinФ = [tex]\frac{1}{\frac{-4}{3} }[/tex]

Or,  sinФ = [tex]\frac{-3}{4}[/tex]

Again

cosФ = [tex]\sqrt{1-sin^{2}\Theta }[/tex]

So,  cosФ = [tex]\sqrt{1-(\frac{-3}{4})^{2}}[/tex]

Or, cosФ = [tex]\sqrt{1-(\frac{9}{16})}[/tex]

Or,  cosФ = [tex]\sqrt{\frac{16 - 9}{16})}[/tex]

∴  cosФ = [tex]\frac{\sqrt{7}}{4}[/tex]

Again

we know that cotФ = [tex]\frac{cos\Theta }{sin\Theta }[/tex]

So,  cotФ  = [tex]\frac{\frac{\sqrt{7}}{4}}{\frac{-3}{4}}[/tex]

Or,  cotФ  = [tex]\frac{-\sqrt{7}}{3}[/tex]

As according to question sinФ lies in third quadrant

So,  cotФ  =  [tex]\frac{\sqrt{7}}{3}[/tex]

Hence, The exact value of cotФ  is  [tex]\frac{\sqrt{7}}{3}[/tex]   . Answer

Why is there no commutative property for subtraction or division

Answers

Answer:

Because order matters when performing subtraction or division.

Step-by-step explanation:

Consider the provided information.

We need to determine why there no commutative property for subtraction or division.

Commutative property states that although the numbers in an expression are interchanged, there is no change in result.

Let us understand with the help of an example

For addition: The commutative rule is a + b = b + a.

An example in numbers would be 5 + 2 = 2 + 5

Both give 7 as result.

For Subtraction:  4 – 2 = 2, but 2 – 4 = –2

So, in the case of subtraction, moving the numbers around produces a different answer.

For division: 4 ÷ 2 = 2,  2 ÷ 4 = [tex]\frac{1}{2}[/tex]

So, in the case of division, moving the numbers around produces a different answer.

Hence, order matters when performing subtraction or division.

Observe the line segments in the word below:MATHList the number of line segments that have a positive slope, negative slope, zero slope and undefined slope.

Answers

Answer:

Segments with positive slope, negative slope, zero slope and undefined slope are indicated in the attach.

Step-by-step explanation:

When you represent or consider a segment in a coordinate axis system, the slope of the segment is the variation in "x" axis in relation to variation in "y" axis, it means the quotient Δx/Δy. If we select two different pairs of points (x1, y1) (x2, y2) ⇒slope =  Δx/Δy ⇒ slope = (x2 - x1)/(y2 - y1).

There four main options:

- If  Δx/Δy > 0 ⇒ Positive slope (In this case: Δx >0 and Δy> 0 or Δx˂ 0 and Δy ˂  0).

- If Δx/Δy ˂  0 ⇒Negative slope (this happens when Δx > 0 and Δy˂0 or

Δx˂0 and Δy>0)

- If Δx/Δy = 0 ⇒ zero slope (This happens when Δx =0).

-If Δx/Δy =∅ ⇒ undefined slope (only when Δy = 0).

Given this explanation and considering the word MATH in a coordinated system, we clasiffied the segments as you can see in the attach. Segments denoted by: 1 have positive slopes, 2 negative slopes, 3 zero slope and 4 unddefined slope.

The universally accepted film size for movies has a width of 35 millimeters. If you want to project a movie onto a square sheet that has an area of ​​100 square meters, what is the scale factor that is needed for the projection of the movie? Explain

Answers

Answer:

The scale factor is 285.7143 ≅ 286.

Step-by-step explanation:

The square sheet has an area of 100 square meters.

Hence, the width of the sheet is [tex]\sqrt{100} = 10[/tex] meters.

The scale factor is needs to be in such a way, so that the film's wide will be match perfectly with the square sheet. Hence, 35x millimeters = 10 meters = 10000 millimeters .

[tex]x = \frac{10000}{35} = 285.7143[/tex].

Use the four-step procedure to solve the following problem. Brine is a solution of salt and water. If a tub contains 50 pounds of 5% solution of brine, how much water (to the nearest tenth lb.) must evaporate to change it to an 8% solution?

Answers

Answer:

18.3 pounds of water must evaporate to make it 8% solution

Step-by-step explanation:

Brine is a solution containing water & salt

Weight of brine solution = 50 pounds

amount of salts = 5% of 50 pounds = (5 ÷ 100) × 50 = 2.5 pounds.

Amount of water = 50 - 2.5 = 47.5 pounds

The new solution is to be made 8%, which indicates that 2.5 pounds of salt is going to be equivalent to 8% of the new salt and some amount of water has to be evaporated for the amount of salt to increase

Using direct relation expression

8% of the solution equivalent to 2.5 pounds of salt

100% will be equivalent to X pounds of solution

Upon cross multiplication,  

X = (100 × 2.5) ÷ (8) = 31.25 pounds of solution

There amount of water that must evaporate is difference between weight of initial solution & final solution

Amount of water to be evaporated = 50 - 31.25 = 18.25 pounds ∞ 18.3 lbs

There are 8 fish tanks in the pet shop. They just received an order of 216 goldfish. The owner of the pet shop wants each tank to have the same number of fish. How many goldfish will each rank have in it?

Answers

Answer:

Each tank would have 27 gold fish in it.

Step-by-step explanation:

Given:

Number of fish tanks = 8

Number of gold fish = 216

We need to find the number of goldfish in each tank.

Solution:

Now we know that;

Number of gold fish must be equal in each tank.

To find the number of gold fish in each tank we will divide Number of gold fish by Number of fish tanks.

framing in equation form we get;

number of gold fish in each fish tank = [tex]\frac{216}{8} = 27 \ fish[/tex]

Hence Each tank would have 27 gold fish in it.

Find the measure of angle A. Round your answer to the nearest hundredth.

59.00 degrees
49.40 degrees
40.60 degrees
31.00 degrees

Answers

Answer:

The answer to your question is 40.60°

Step-by-step explanation:

Data

Right triangle

Opposite side = 6

Adjacent side = 7

Process

1.- To find angle A, use trigonometric functions.

The trigonometric function that relates the opposite side and the adjacent side is tangent

           tanA = [tex]\frac{Opposite side}{Adjacent side}[/tex]

2.- Substitution

           tan A = [tex]\frac{6}{7}[/tex]

3.- Find tan⁻¹A

        tan⁻¹ A = A = 40.60°

To qualify for the championship a runner must complete the race in less than 55 minutes ....... Use "t" to represent the time in minutes of a runner who qualifies for the championship

Answers

The inequality required is t < 55.

Given:

To qualify for the championship, a runner must complete the race in less than 55 minutes.

In this question, we are dealing with the time taken by runners to complete a race. Let's use 't' to represent the time in minutes of a runner who qualifies for the championship. The condition for qualification is that the runner must complete the race in less than 55 minutes.

So, the inequality that represents this situation is: t < 55.

Any runner who completes the race in less than 55 minutes will qualify for the championship.

please help! I don't understand.​

Answers

Answer:

1. Given

2. Alternate interior angle theorem

3. Alternate interior angle theorem

4. Reflexive property of congruence

5. ASA

Step-by-step explanation:

1. JK || LM, JL || KM

This is the information given in the problem statement.

2. ∠JKL ≅ ∠MLK

∠JKL and ∠MLK are alternate interior angles.  Since JK and LM are parallel, the alternate interior angles are congruent.

3. ∠JLK ≅ ∠MKK

∠JLK and ∠MKL are alternate interior angles.  Since JL and KM are parallel, the alternate interior angles are congruent.

4. KL ≅ LK

According to reflexive property, a segment is always congruent to itself.

5. ΔJKL ≅ ΔMLK

We have two triangles with two pairs of congruent angles, and a pair of congruent sides between those angles.  Therefore, the triangles are congruent by ASA.

What is the solution of the equation (x – 5)2 + 3(x – 5) + 9 = 0? Use u substitution and the quadratic formula to solve.
x = StartFraction negative 3 plus-or-minus 3 i StartRoot 3 EndRoot Over 2 EndFraction
x = StartFraction 7 plus-or-minus 3 i StartRoot 3 EndRoot Over 2 EndFraction
x = 2
x = 8

Answers

Answer:

Option 2 -  [tex]x=\frac{7\pm3\sqrt{3}i}{2}[/tex]

Step-by-step explanation:

Given : Equation [tex](x-5)^2+3(x-5)+9=0[/tex]

To find : What is the solution of the equation ?

Solution :

Using substitution method,

Let y=x-5

[tex]y^2+3y+9=0[/tex]

Using quadratic formula, [tex]x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]

Here, a=1, b=3 and c=9

[tex]y=\frac{-3\pm\sqrt{3^2-4(1)(9)}}{2(1)}[/tex]

[tex]y=\frac{-3\pm\sqrt{-27}}{2}[/tex]

[tex]y=\frac{-3\pm3\sqrt{3}i}{2}[/tex]

Substitute back,

[tex]x=\frac{-3\pm3\sqrt{3}i}{2}+5[/tex]

[tex]x=\frac{-3\pm3\sqrt{3}i+10}{2}[/tex]

[tex]x=\frac{7\pm3\sqrt{3}i}{2}[/tex]

Therefore, option 2 is correct.

Answer:

Option 2

Step-by-step explanation:

I just took the test and got it right.

2x – 6y = 5
x – 3y = -12

show all the steps to solve the system of equations below using substitution.

Answers

You can use any of the available methods for solving system of linear equations like method of elimination or method of substitution etc.

There are no solutions to the given system of equations.

How to find the solution to the given system of equation?

For that , we will try solving it first using the method of substitution in which we express one variable in other variable's form and then you can substitute this value in other equation to get linear equation in one variable.

If there comes a = a situation for any a, then there are infinite solutions.

If there comes wrong equality, say for example, 3=2, then there are no solutions, else there is one unique solution to the given system of equations.

Using the above method to solve the given system of equations

The given system of equations is

[tex]2x - 6y = 5\\x - 3y = -12[/tex]

Using second equation to get x in terms of y

[tex]x - 3y - 12\\x = 3y - 12[/tex]

Substituting this expression for x in place of x in first equation,

[tex]2x - 6y = 5\\2( 3y - 12) - 6y = 5\\6y - 24 - 6y = 5\\-24 = 5[/tex]

The last statement we got is incorrect.

That conclusion above shows that the given system of equation has no solution.

We could've detected it from the fact that

[tex]2x - 6y = 5\\\text{dividing both sides by 2}\\x - 3y = 2.5[/tex]

Converting both equations to slope intercept form, we get:

[tex]x - 3y = 0.5\\\\y = \dfrac{1}{3}x - \dfrac{1}{6}[/tex]

and

[tex]x - 3y = -12\\\\y = \dfrac{1}{3}x + 4[/tex]

We see that both lines have same slope but different y intercept, which tells that both lines are parallel but not coincident, thus, not intersecting and thus, no common point(common points are solutions).

The graph of this system of linear equation is given below where lines represented by both linear equations are plotted.

Thus,

There are no solutions to the given system of equations.

Learn more about system of linear equations here:

brainly.com/question/13722693

Final answer:

To solve the system of equations using substitution, rearrange one of the equations to solve for a variable and substitute that expression into the other equation. In this case, the system of equations is inconsistent and has no solutions.

Explanation:

To solve the system of equations using substitution, we rearrange one of the equations to solve for a variable, then substitute that expression into the other equation. Let's solve the system of equations:

Equation 1: 2x - 6y = 5

Equation 2: x - 3y = -12

In Equation 2, solve for x: x = 3y - 12Substitute this expression for x into Equation 1:2(3y - 12) - 6y = 56y - 24 - 6y = 5-24 = 5This is a contradiction, which means there is no consistent solution for x and y in this system of equations.

Therefore, the system of equations is inconsistent, and there are no solutions.

The member of the student council are selling raffle tickets. The school decides that the top three raffle ticket sellers will share portion of the profits. The second place winner will receive 8 more dollars then the third place. The first place seller will receive twice as much as the second place seller. The profit portion they will share is $ 104. How much will each of the top three sellers receive?

Answers

Answer:the first place seller receives $56

The second place seller receives $28

The third place seller receives $20

Step-by-step explanation:

Let x represent the amount that the first place seller would receive.

Let y represent the amount that the second place seller would receive.

Let z represent the amount that the third place seller would receive.

The second place winner will receive 8 more dollars than the third place winner. This means that

z = y - 8

The first place seller will receive twice as much as the second place seller. It means that

x = 2y

The profit portion they will share is $ 104. It means that

x + y + z = 104 - - - - - - - - - - - 1

Substituting z = y - 8 and x = 2y into equation 1, it becomes

2y + y + y - 8 = 104

4y = 104 +8 = 112

y = 112/4 = 28

x = 2x = 2 × 28

x = 56

z = y - 8 = 28 - 8

z = 20

What is the mathematical meaning of each symbol below? Give an example of each using numbers and/or algebraic expressions. ∼ ∪ ∩ ∅ ≠ !

Answers

Answer:

 : This symbol denotes similarity

: This symbol means union

∩ : This symbol means Intersection

∅ : means an empty set

≠ : this symbol mean not equal to

! : This symbol means factorial

Step-by-step explanation:

Given symbols in the question:

∼  : This symbol denotes similarity

i.e the resemblance or likeness.

∪ : This symbol means union

i.e

A∪B element that belong to set A or set B

∩ : This symbol means Intersection

i.e

A∩B = Element that belong to set A and set B

∅ : means an empty set

For example

if A = { 1, 2, 3 }   B = { 4, 5, 6 }

Then,

A∩B = ∅

≠ : this symbol mean not equal to

i.e

LHS is not equal to RHS

! : This symbol means factorial

i.e

If we write 3!

we solve it as 3! = 3 × 2 × 1

The inventor of a new game believes that the variable cost for producing the game is $0.90 per unit and the fixed costs are $6200. The inventor sells each game for $1.69. Let x be the number of games sold. The total cost for a business is the sum of the variable cost and the fixed costs. Write the total cost C as a function of the number of games sold.

Answers

Final answer:

The total cost function based on the number of games sold can be written as C(x) = $6200 + $0.90x. This equation depicts that for every game produced and sold, the total cost increases by $0.90 from a base cost of $6200.

Explanation:

In this particular scenario, fixed costs are constant and turnover does not affect them, hence, a fixed cost of $6200. Variable costs, on the other hand, depend on the quantity produced, which in this case, is $0.90 per unit.

Therefore, as the production output - denoted as 'x' - increases, variable costs also increase, forming a direct relationship. According to the given information, the cost function, denoted as 'C', which represents the total cost, will be the sum of both fixed and variable costs.

So, the total cost function based on the number of games sold, can be written algebraically as: C(x) = $6200 + $0.90x.

This equation implies that for each game produced and sold, the total cost increases by $0.90, with a starting cost of $6200, the fixed costs.

Learn more about Cost Function here:

https://brainly.com/question/29583181

#SPJ12

Other Questions
Suppose Poland is producing on its production possibilities frontier, and it decides to increase the production of steel and decrease the production of vodka. The bowed-out production possibility frontier suggests that there will be a(n) _____ opportunity cost of producing more steel. Jordan wants to spend at most $45 on her friends birthday gift she already bought her a $15 yoga ball right in quality to show how much she can still spend on her friend then saw the equality Among the teachers of rhetoric and public speaking in the Greek city state of Athens, one group of travelling teachers who tutored students in public speaking were called: The accuracy and reliability of information presented in a company's annual report, including its financial statements and their accompanying notes, is primarily the responsibility of _______ According to the 2004 NHTSAs national center for statistics and analysis.the 16694 fatalities due to drunk driving every year in the USA,equals to 1 every ____ minutes Reacting to increasing public criticism and FTC scrutiny in the 1970s, the ad industry established the ________ to monitor potentially deceptive advertising. As shown below, three squares connected at their vertices form a right triangle. What is thearea of the largest square?15 meters squared225 meters squared218 meters squared178 meters squared On June 1, 2005, Yola Corp. loaned Dale $500,000 on a 12% note, payable in five annual installments of $100,000 beginning January 2, 2006. In connection with this loan, Dale was required to deposit $5,000 in a noninterest-bearing escrow account.a. The amount held in escrow is to be returned to Dale after all principal and interest payments have been made. b. Interest on the note is payable on the first day of each month beginning July 1, 2005. c. Dale made timely payments through November 1, 2005. d. On January 2, 2006, Yola received payment of the first principal installment plus all interest due.e. On December 31, 2005, Yola's interest receivable on the loan to Dale should be A student solving a physics problem to find the unknown has applied physics principles and obtained the expression: kmgcos=mgsinma, where g=9.80meter/second2, a=3.60meter/second2, =27.0, and m is not given. Which of the following represents a simplified expression for k?tan agTo avoid making mistakes, the expression should not be simplified until the numerical values are substituted.gsinagcosThe single equation has two unknowns and cannot be solved with the information given. Your brother is 3 years older than you. Your sister is 4 years younger than you. Th e product of your ages is 1872. How old is your sister? Identify the collective noun in the sentence.The hardware store sponsored the team that won the Little League championship, and the trophy is on display on the counter.A.teamB.storeC.championshipD.trophy Machinery with rotating or reciprocating parts that are within seven feet of the floor or working platform requires what additional equipment? .Which is a big idea for space and time?Energy can be transferred but not destroyed.Forces describe the motion of the universe.The universe consists of matter.The universe is very big and very old. An entrepreneur borrows $300,000 today. The interest rate is 8%. Finally, the loan needs to be paid off in equal annual installments over the next 10 years, starting one year from today. How much will the entrepreneur have to pay each year? A 6.00 kg crate is suspended from the end of a short vertical rope of negligible mass. An upward force F(t) is applied to the end of the rope, and the height of the crate above its initial position is given by y(t)=(2.80m/s)t +(0.61 m/s3 )t3What is the magnitude of the force F when 4.40 s ? HELP NOW!!! 20 POINTS AND URGENTLY NEEDED!!!!!!!!!!!!!!Solve the system of equations.2x+7y=3x=-4yx= _____y= _____ Which of the following statements is false?a) The functionalist perspective has been criticized because it fails to consider how much dysfunction a society has. b) Functionalists assume consensus because all persons in society have learned the same cultural values, rules, and expectations. c) Conflict theorists view culture as having a uniting effect on society. d) Conflict theorists argue that people with power manipulate institutions such as religion and education. skills allow a manager to be able to take a problem apart and determine where the snag is, then determine the best way to implement a correction. PLZ I NEED HELP! 20 points brainleistSelect the equation that has NO solution.A.3(2x + 7) = 6(x + 4) 3B.3(6x 5) = 3(6x 5) + xC.8(x 3) + 14 = 2(4x + 5)D.13x 7 = 12(x 1) + x + 5 A projectile of mass 6.8 kg kg is shot horizontally with an initial speed of 14.5 m/s from a height of 26.7 m above a flat desert surface. The acceleration of gravity is 9.81 m/s. For the instant before the projectile hits the surface, find the work done on the projectile by gravity. Answer in units of J. Steam Workshop Downloader